Personal Computer User Manual

Chapter10.Additionalserviceinformation

Thischapterprovidesadditionalinformationthattheservicerepresentativemightndhelpful.

Securityfeatures

Securityfeaturesinthissectionincludethefollowing:

•Passwords

•VitalProductData

Hardwarecontrolledpasswords

HardwarecontrolledpasswordsaresetusingtheSetupUtilityprogram.Formoreinformationabout

passwords,see“Usingpasswords”onpage55

Operatingsystempassword

Anoperatingsystempasswordisverysimilartoapower-onpasswordanddeniesaccesstothecomputer

byanunauthorizeduserwhenthepasswordisactivated.Thecomputerisunusableuntilthepasswordis

enteredandrecognizedbythecomputer.

Vitalproductdata

EachcomputerhasauniqueVitalProductData(VPD)codestoredinthenonvolatilememoryonthesystem

board.Afteryoureplacethesystemboard,theVPDmustbeupdated.ToupdatetheVPD,see“Flash

updateprocedures”onpage111.

BIOSlevels

AnincorrectlevelofBIOScancausefalseerrorsandunnecessaryFRUreplacement.Usethefollowing

informationtodeterminethecurrentlevelofBIOSinstalledinthecomputer,thelatestBIOSavailableforthe

computer,andwheretoobtainthelatestlevelofBIOS.

•TodeterminethecurrentLevelofBIOS:

–StarttheSetupUtility.

–SelectStandardCMOSFeatures.

•SourcesforobtainingthelatestlevelBIOSavailable

1.Lenovosupportwebsite:http://www.lenovo.com/support/

2.LenovoCustomerSupportCenter

3.Levels1and2Support

Toupdate(ash)theBIOS,see“Flashupdateprocedures”onpage111.

Note:BIOSsettingsvarybyoperatingsystem.ChangetheBIOSsettingsbeforeinstallinganewoperating

system.See“ChangingtheBIOSsettingsbeforeinstallinganewoperatingsystem”onpage58

Flashupdateprocedures

Thissectiondetailshowtoash(update)theBIOS.

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